525745648 has 20 divisors (see below), whose sum is σ = 1019131200. Its totient is φ = 262744064.

The previous prime is 525745643. The next prime is 525745657. The reversal of 525745648 is 846547525.

It is a junction number, because it is equal to n+sod(n) for n = 525745598 and 525745607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525745643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31536 + ... + 45232.

It is an arithmetic number, because the mean of its divisors is an integer number (50956560).

Almost surely, 2^525745648 is an apocalyptic number.

It is an amenable number.

525745648 is a deficient number, since it is larger than the sum of its proper divisors (493385552).

525745648 is a wasteful number, since it uses less digits than its factorization.

525745648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16104 (or 16098 counting only the distinct ones).

The product of its digits is 1344000, while the sum is 46.

The square root of 525745648 is about 22929.1440747360. The cubic root of 525745648 is about 807.0960629283.

It can be divided in two parts, 5257 and 45648, that added together give a palindrome (50905).

The spelling of 525745648 in words is "five hundred twenty-five million, seven hundred forty-five thousand, six hundred forty-eight".